Abstract
Electromagnetic suspension of vehicles has advantage of improved ride comfort and drivability. Electromagnetic levitation has been in use in Maglev trains for smoother transportation. However, application of electromagnetic suspension system was limited by its cost and weight. This paper focuses study on use of an electromagnet and permanent magnet hybrid magnet setup and compares the control method to stabilize the suspension system by genetic algorithm optimization, auto tuning technique and fuzzy logic controller for tuning the Proportional-Integral-Derivative (PID) controller for making the system stable. MATLAB-Simulinkanalysis of hybrid magnetic suspension system show stabilization by reduction of the errors in the closed loop control system. Realization in a real time setup may be possible by varying the magnetic field developed in the electromagnet to control the force of repulsion between the electromagnet and permanent magnet.
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